Convair CV-340

Rovos Air

On Tuesday 10 July 2018, at approximately 1439Z, two crew members and 17 passengers took off on a ZS-BRV aircraft for a scenic flight from Wonderboom Aerodrome (FAWB) destined for Pilanesberg Aerodrome (FAPN) when the accident occurred. During take-off, the left engine caught fire, however, the crew continued with the flight. They declared an emergency by broadcasting ‘MAYDAY’ and requesting to return to the departure aerodrome. The crew turned to the right with the intention of returning to the aerodrome. However, the left engine fire intensified, causing severe damage to the left wing rear spar and left aileron system, resulting in the aircraft losing height and the crew losing control of the aircraft and colliding with power lines, prior to crashing into a factory building. The footage taken by one of the passengers using their cellphone showed flames coming from the front top side of the left engine cowling and exhaust area after take-off. The air traffic control (ATC) on duty at the time of the accident confirmed that the left engine had caught fire during take-off and that the crew had requested clearance to return to the aerodrome. The ATC then activated the crash alarm and the aircraft was prioritized for landing. During the accident sequence that followed, one passenger (engineer) occupying the jump seat in the cockpit was fatally injured and 18 others sustained injuries. The investigation revealed that during take-off, the left engine had caught fire and the crew had continued with the flight without securing the left engine as prescribed in the aircraft flight manual (AFM). The crew had then declared an emergency and attempted to return to the aerodrome, however, they lost control of the aircraft and collided with power lines prior to crashing into a factory building. Owned by Rovos Air (part of the South African Rovos Rail Group), the aircraft was donated to the Dutch Museum Aviodrome based in Lelystad and has to be transferred to Europe with a delivery date on 23 July 2018. For this occasion, the aircraft was repaint with full Martin's Air Charter colorscheme. Part of the convoy program to Europe, the airplane was subject to several test flights, carrying engineers, technicians, pilots and also members of the Aviodrome Museum.

Miami Air Lease

The pilot stated that when the airplane was 3 miles east of the shoreline, at 3,000 feet, he felt a short tremor in the left engine followed by loss of power from the left engine. The pilot elected to return to the departure airport while declaring an emergency to air traffic control. During the process of securing the left engine the pilot noticed the propeller did not feathered and the airplane was descending quickly. He maneuvered the airplane and ditched in a lake. On September 26, 2003 engine s/n: 34592 was removed from the accident airplane due to high oil consumption with 1,225 hours of time in service. It was reportedly preserved and stored at the operator's warehouse. The mechanic who reportedly preserved the engine stated he followed the steps in the manual that was provided by the operator. On October 27, 2004 the left engine, s/n: NK510332, which was producing metal for months, was removed and engine s/n: 34592 was taken out of preservation and installed in the left position on the accident airplane with a new overhauled propeller assembly. On November 06, 2004, the left engine's, s/n: 34592, propeller governor was replaced due to the left propeller slow to response to power setting. During the post accident engine examination, the engine's main oil screen was observed with deposits of metal flakes and fragments, the oil scavenge pump would not rotate and had deposits of metal fragments internally; the engine was seized and wound not rotate. Catastrophic damage was observed to the accessories drive gears, oil transfer tube, and protection covers in the front accessory area. It was observed during a visual inspection of the crankshaft and bearings, including the front journal and front crankpin had damaged and sections of their respective bearings missing. The master rod bearing had incurred a catastrophic failure. Several cylinders skirts were found with impact marks from piston rods. Before removing the propeller assembly from the engine, the propeller feather system was flush with fresh oil and pressured with a feathering pump; the propeller blades were observed moving toward the feather position. Examination of the propeller assembly revealed metal contamination throughout the system; the propeller's governor screen gasket was clogged with metal contamination. The maintenance manual provided by the operator used for the engine preservation details several tasks required to be accomplished to the engine for proper engine preservation (i.e. thrust bear, cylinder, and propeller shaft treatments), which the mechanic did not mention he performed. No documentation for inspection and condition status of the dehydrator plugs were available. Documentation for flushing of contamination from the metal producing engine, s/n NK510332, was not available nor knowledge by the operator if since a process was preformed to the left engine's oil tank and its system before installation of engine s/n: 34592. An FAA review of the cargo manifest discovered two different manifest weights. The cargo manifest obtained at the accident scene showed a total of 267 pieces of cargo annotated at a total weight of 10, 837 lbs. The sealed cargo manifest package showed a total of 267 pieces of cargo annotated at a total weight of 14,182 lbs. The maximum payload weight for the accident airplane is 13,586 lbs.

Florida Aircraft Leasing Corporation

En route from Saint Louis to Minneapolis, while cruising at an altitude of 6,000 feet, the right engine caught fire. The copilot declared an emergency and was cleared to divert to Elma Airport. Shortly later, the right engine detached. The crew completed an emergency descent but made a forced landing off airport on land. All four occupants evacuated safely while the aircraft was considered as damaged beyond repair.

Saudi Arabian Airlines - SAUDIA

The aircraft was completing a flight from Najran to Aden with intermediate stops in Sana'a and Ta'izz. On approach to Sana'a Airport, the crew encountered technical problems and the captain decided to attempt an emergency landing on a road located few km from the airport. All occupants escaped uninjured while the aircraft was damaged beyond repair.

Saudi Arabian Airlines - SAUDIA

After takeoff from Jeddah-King Abdulaziz Airport, while climbing, the crew reported technical problems and was cleared to return for an emergency landing. On final, the copilot extended flaps to an angle of 17° and the landing was properly completed on runway 33L. Nevertheless, after touchdown, the airplane veered off runway to the left and while contacting rocky ground, the nose gear collapsed and the airplane came to rest. All 15 occupants evacuated safely while the airplane was damaged beyond repair.

Saudi Arabian Airlines - SAUDIA

While approaching Dhahran Airport, the crew encountered poor weather conditions with sandstorm. Unable to locate the runway, the pilot initiated a go-around and followed a holding pattern. A second attempt to land was made few minutes later but again, the crew was forced to make a go-around due to poor visibility. During the third approach, the aircraft was too low and struck a sand dune located 5 km short of runway and crashed. All 11 occupants were killed.

Delta Airlines

En route, the crew informed ATC about the failure of the left engine and was cleared to divert to Evansville-Dress Airport for an emergency landing. On short final, the captain decided to make a go-around when the airplane stalled and crashed short of runway threshold. All 42 occupants were evacuated among them 10 were injured. The aircraft was considered as damaged beyond repair.

Cruzeiro do Sul

The aircraft was on scheduled domestic flight from São Paulo to Rio de Janeiro with 5 crew and 45 passengers aboard. Following an eight-minute delay due to heavy traffic, the flight was cleared to take off from São Paulo-Congonhas Airport. One minute after takeoff the pilot-in-command reported to the tower that the aircraft's n°2 engine was on fire, and he would return to the airport. A left turn was begun, and it is presumed that the pilot feathered n°2 propeller. He began the downwind leg to runway 16 and asked the tower operators whether anything abnormal could be seen regarding the aircraft's n°2 engine. The tower operators, from whom n°2 engine was hidden by the fuselage, reported that they could not see anything abnormal. Presumably the pilot unfeathered the propeller which started windmilling. Approximately abeam the tower, the aircraft began to lose altitude and when it started the final turn its altitude was very low. The aircraft was probably nosed up and stalled with a bank of 45°; it first struck a house with its nose and left wing, then hit the ground (elevation 800 meters) and made a 260° turn on its left wing. The accident occurred at night in a well illuminated, densely populated area. The aircraft was destroyed upon impact and 4 crew members and 33 passengers were killed, 13 other occupants being injured.

Cruzeiro do Sul

The landing procedure was completed on a waterlogged runway. After touchdown, the airplane deviated from the centerline to the right and veered off runway. While contacting soft ground, the undercarriage collapsed and the airplane came to rest. All nine occupants were evacuated safely while the aircraft was damaged beyond repair.

Frontier Airlines

The first officer, who was flying, started the approach to runway 17 which does not have approach lights nor Instrument landing System. At the time the aircraft was northbound in the holding pattern of the Grand Island VOR. A 90 degree left turn, then a 270 degree right turn was accomplished which aligned the aircraft, with the runway. The following sequence of events was described by the captain and substantiated by the first officer. The captain stated “. . . We completed the approach checklist and made a turn north of the low frequency range (8391 feet from the threshold of runway 17) which was visible as we went over it. The area around the range and the south half of the distance to the airport was absolutely clear. Our path was one which had the runway lights clearly aligned. (The runway lights were on at position 3 which is medium intensity.) The approach was a normal gradual descent. The radios were tuned to the low frequency range and the Omni. Since we were not ready to land our checklist was complete with the exception of approach flaps and landing flaps and ADI on. There were no ground witnesses to the approach or crash which was in a large level open field. There was no moonlight and the captain testified that except for the lights on the range station, there were no ground lights seen under the approach path. Both he and the first officer testified that they did not observe the runway light appear to "spread," which amounts to a visual warning of being very low - nearly at the level of the lights upon approaching the runway. A weather observation at 2037. seven minutes after the accident was: special, clear, visibility 7 miles, temperature 26 degrees F, dewpoint 26 degrees F, wind south 10 knots, altimeter setting 29.80 inches (aircraft accident) (observation recorded but not transmitted via teletype). The initial point of contact of the nosewheel was about three feet to the right of the extended centerline of runway 17 and approximately 4,061 feet short of the threshold of that runway. Additional marks indicate that the aircraft struck while nearly level longitudinally, in a yaw of about six degrees to the right, and in a shallow left bank. Upon initial impact, the left main landing gear collapsed and was torn free. Both propellers struck the ground and were also torn off with the nose cones of their respective engines. The left wing became detached as the aircraft rolled to the left onto its back and slid, inverted, swerving to the left and coming to rest on a heading of about 045 degrees at a distance of 1,275 feet from the place of first contact. Fire developed in the detached left wing, but not in the fuselage. Consequently all 43 occupants were able to evacuate the aircraft quickly, with the majority going out through the galley service door, which the stewardess opened and the others leaving via the emergency exit at seat 8D. The captain left through a cockpit window; the first officer and one passenger through a hole in the fuselage. Injuries were sustained by both pilots and three passengers. The aircraft was destroyed by a post crash fire.